The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1996
Filed:
Dec. 06, 1994
Applicant:
Inventors:
Yoshihiro Imuro, Shiga, JP;
Hiroyuki Tomooka, Shiga, JP;
Assignee:
Optex Co., Ltd., Shiga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; G08B / ;
U.S. Cl.
CPC ...
340567 ; 2503381 ; 250340 ; 250D / ;
Abstract
An intruder detection system for senses infrared radiated by an intruder through a window-pane and detecting the intrusion through the reception of an output from the infrared sensors. The system includes a light emitter for projecting infrared rays toward a detection area and a light acceptor for receiving at least part of the infrared rays projected by the light emitter through an obstruction detection optical path. The light emitter and the light acceptor are located on opposite sides of the window-pane.